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To determine if aerated fuel is causing rough running or stalling, perform the following steps: ‪

  1. Test for aerated fuel; refer to Section .
  2. Aerated fuel resolution; refer to Section .
  3. Verify aerated fuel resolution; refer to Section .

Test Engine with Aerated Fuel Resolution

Perform the following to determine if the aerated fuel resolution resolved rough running or stalling condition: ‪

  1. Start and run the engine.
  2. Run the engine through its operating range with no-load for approximately 5 minutes, allowing the engine coolant to reach normal operating range, 88-96C (190-210F).
    1. If the engine is not running rough or stalling, no further troubleshooting is required. Shut the engine down.
    2. If the engine is running rough or stalling, shut the engine down. Check for insufficient fuel oil flow; refer to Section .